. >>> meanwhile, with david petraeus out, the cia has a new leader. michael morell is a career cia officer who has held a variety of leadership positions and it's the second time he's held the role of acting director. david martin has more. >> reporter: after only 14 months, david petraeus, the supposedly indispensable man, is gone. without warning, a new man, michael morell, must step forward from his post as deputy first to leon panetta, then to petraeus, and take over. john mclachlan knows what that's like. he did it in 2004. >> once you're sitting in that chair, there's no one sitting behind you. there's no safety net. so the acting director for all practical purposes is the director for that period of time. >> reporter: can morell head an organization in the middle of a shooting war. he has been in on the war since it started. as president bush's daily briefer, he delivered the famous briefing in august of 2001, bin laden determined to strike in u.s. he was with the president on 9/11, relaying reports from cia headquarters. he is an analyst, not an operator. but then, neither was panetta, who